Which IPv6 address assignment method uses router advertisements without a DHCP server?

• A. SLAAC
• B. DHCPv6
• C. Static
• D. DHCP

Answer: (A)

SLAAC. It relies on ICMPv6 Router Advertisements from the local router to publish the network prefix. The host uses that prefix to construct its own IPv6 address (often by combining the prefix with a device-specific interface identifier), so addresses are assigned without a DHCP server. DHCPv6 would involve a server to allocate addresses or provide other config, while static is manual, and DHCP (in IPv6 sense) is a separate, server-based method. SLAAC is the method that uses router advertisements and does not require a DHCP server for address assignment.